|Category||Stavax ESR Plastic Mould Steel|
|Grades||U.S AISI 420 Steel
Germany DIN 1.2083
Product description: Stavax ESR is a high quality stainless steel. Manufactured using clean ESR process. It is plastic mould steel with excellent polishability and corrosion resistance. Customer reviews:
Stavax ESR Steel is a high-quality Electroslag Remelted (ESR) stainless steel. Stavax ESR Steel is designed for plastic molds requiring good corrosion resistance, excellent wear resistance and a high degree of polishibility. High internal cleanliness and homogeneity are provided by the ESR process.
Stavax ESR steel properties:
- Good corrosion resistance.
- Excellent polishability.
- Good wear resistance.
- Good machinability.
- Good demensional stability during heat treatment.
Stavax ESR Steel Applications:
- It is used in molding of corrosive plastics such as PVC, Acetates and for molds that runs under humid working and storage condition.
- Stavax ESR Steel is used in the molding of medical components such as syringes and analysis vials.
- It is recommended for the production of optical parts like sunglasses,cameras and lenses.
- It is suitable for larger molds because of its high hardenabilty feature.
Stavax ESR Steel Benefits:
Stavax ESR Steel Reduce mold maintenance cost as the mold made of Stavax Steel maintains its original surface finish over a long period of time. As compare to non stainless steel, Stavax ESR Steel offers lower production cost through cooling channels that offer clean uniform and consistent cooling cycles times.
Modulus of Elasticity 29psix10 (6) (200 GPa)
Density 0.276 lb/in3 (7640 kg/M3)
Thermal Conductivity 14.4 BTU / hr. / Ft. / F 24.9 W / m / ° K)
Preheating: 600-850 ° 100 (1110-1560 ° F)Normally a minimum of Two preheating steps required.
Austenitizing : 100 ° 1000-1025 (1830 -1880 ° C) 1020 House usually 100 ° (1870 ° C). For a very large Mould 1000 100 ° (1830 ° C) Recommended it.
Annealing: Protect the steel and heat through to 740 ° C(1365 ° F). Then cool in the furnace at 15 ° C (30 ° F)per hour to 550 ° C (1020 ° F), then freely in air.
Stress relieving: After rough machining the tool should be heated through to 650 ° C (1200 ° C), holding time 2 hours.Cool slowly to 500 ° C (930 ° F), then freely in air.
Tempering: Tempering at 250-300 ° C (480-570 ° F) results in the best combination of toughness, hardness and corrosion resistance.Holding time at that temperature is minimum 2 hours. HOWEVER, for very large molds it is recommended to use a high tempering temperature to Reduce the residual stresses to a minimum.
Quenching: Interrupted oil to below 1000F (540C). Air cool to 150F (65C). Salt bath at 250–550°C, then cool in Airblast.
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